webpack-streamがインストールできない

Question

###前提・実現したいこと
「ゼロから始めるJavaScript生活」というjavascriptフルスタックを目指すチュートリアルの途中のWebpackをGulpに統合する章でつまずいています。
該当の記事

###発生している問題・エラーメッセージ

yarn add --dev webpack-streamを実行

yarn add v0.27.5
[1/4] Resolving packages...
[2/4] Fetching packages...
error An unexpected error occurred: "EISDIR: illegal operation on a directory, open '/home/ubuntu/.cache/yarn/v1/npm-wrappy-0.0.0-5ae29abe-8e63-45d0-9716-b1d2da57b78a-1501482598134'".
info If you think this is a bug, please open a bug report with the information provided in "/home/ubuntu/workspace/nodetest/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

メッセージにある /home/ubuntu/workspace/nodetest/yarn-error.logの内容は下記

Arguments: 
  /home/ubuntu/.nvm/versions/node/v6.11.1/bin/node /home/ubuntu/.nvm/versions/node/v6.11.1/bin/yarn add --dev webpack-stream

PATH: 
  /home/ubuntu/.nvm/versions/node/v6.11.1/bin:/usr/local/rvm/gems/ruby-2.2.1/bin:/usr/local/rvm/gems/ruby-2.2.1@global/bin:/usr/local/rvm/rubies/ruby-2.2.1/bin:/mnt/shared/bin:/home/ubuntu/workspace/node_modules/.bin:/home/ubuntu/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/mnt/shared/sbin:/opt/gitl:/opt/go/bin:/mnt/shared/c9/app.nw/bin:/usr/local/rvm/bin

Yarn version: 
  0.27.5

Node version: 
  6.11.1

Platform: 
  linux x64

npm manifest: 
  {
    "name": "nodetest",
    "version": "1.0.0",
    "main": "index.js",
    "license": "MIT",
    "scripts": {
      "start": "gulp"
    },
    "dependencies": {
      "babel-polyfill": "^6.23.0"
    },
    "devDependencies": {
      "babel-loader": "^7.1.1",
      "babel-preset-latest": "^6.24.1",
      "del": "^3.0.0",
      "eslint": "^4.3.0",
      "eslint-config-airbnb": "^15.1.0",
      "eslint-plugin-import": "^2.7.0",
      "eslint-plugin-jsx-a11y": "^5.1.1",
      "eslint-plugin-react": "^7.1.0",
      "gulp": "^3.9.1",
      "gulp-babel": "^6.1.2",
      "gulp-eslint": "^4.0.0"
    },
    "babel": {
      "presets": [
        "latest"
      ]
    },
    "eslintConfig": {
      "extends": "airbnb",
      "plugins": [
        "import"
      ],
      "env": {
        "browser": true
      }
    }
  }

yarn manifest: 
  No manifest


{...中略}


  tmp@^0.0.31:
    version "0.0.31"
    resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.31.tgz#8f38ab9438e17315e5dbd8b3657e8bfb277ae4a7"
    dependencies:
      os-tmpdir "~1.0.1"
  
  to-fast-properties@^1.0.1:
    version "1.0.3"
    resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
  
  trim-right@^1.0.1:
    version "1.0.1"
    resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
  
  tryit@^1.0.1:
    version "1.0.3"
    resolved "https://registry.yarnpkg.com/tryit/-/tryit-1.0.3.tgz#393be730a9446fd1ead6da59a014308f36c289cb"
  
  type-check@~0.3.2:
    version "0.3.2"
    resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
    dependencies:
      prelude-ls "~1.1.2"
  
  typedarray@^0.0.6:
    version "0.0.6"
    resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
  
  unc-path-regex@^0.1.0:
    version "0.1.2"
    resolved "https://registry.yarnpkg.com/unc-path-regex/-/unc-path-regex-0.1.2.tgz#e73dd3d7b0d7c5ed86fbac6b0ae7d8c6a69d50fa"
  
  unique-stream@^1.0.0:
    version "1.0.0"
    resolved "https://registry.yarnpkg.com/unique-stream/-/unique-stream-1.0.0.tgz#d59a4a75427447d9aa6c91e70263f8d26a4b104b"
  
  user-home@^1.1.1:
    version "1.1.1"
    resolved "https://registry.yarnpkg.com/user-home/-/user-home-1.1.1.tgz#2b5be23a32b63a7c9deb8d0f28d485724a3df190"
  
  util-deprecate@~1.0.1:
    version "1.0.2"
    resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
  
  v8flags@^2.0.2:
    version "2.1.1"
    resolved "https://registry.yarnpkg.com/v8flags/-/v8flags-2.1.1.tgz#aab1a1fa30d45f88dd321148875ac02c0b55e5b4"
    dependencies:
      user-home "^1.1.1"
  
  validate-npm-package-license@^3.0.1:
    version "3.0.1"
    resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.1.tgz#2804babe712ad3379459acfbe24746ab2c303fbc"
    dependencies:
      spdx-correct "~1.0.0"
      spdx-expression-parse "~1.0.0"
  
  vinyl-fs@^0.3.0:
    version "0.3.14"
    resolved "https://registry.yarnpkg.com/vinyl-fs/-/vinyl-fs-0.3.14.tgz#9a6851ce1cac1c1cea5fe86c0931d620c2cfa9e6"
    dependencies:
      defaults "^1.0.0"
      glob-stream "^3.1.5"
      glob-watcher "^0.0.6"
      graceful-fs "^3.0.0"
      mkdirp "^0.5.0"
      strip-bom "^1.0.0"
      through2 "^0.6.1"
      vinyl "^0.4.0"
  
  vinyl-sourcemaps-apply@^0.2.0:
    version "0.2.1"
    resolved "https://registry.yarnpkg.com/vinyl-sourcemaps-apply/-/vinyl-sourcemaps-apply-0.2.1.tgz#ab6549d61d172c2b1b87be5c508d239c8ef87705"
    dependencies:
      source-map "^0.5.1"
  
  vinyl@^0.4.0:
    version "0.4.6"
    resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-0.4.6.tgz#2f356c87a550a255461f36bbeb2a5ba8bf784847"
    dependencies:
      clone "^0.2.0"
      clone-stats "^0.0.1"
  
  vinyl@^0.5.0:
    version "0.5.3"
    resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-0.5.3.tgz#b0455b38fc5e0cf30d4325132e461970c2091cde"
    dependencies:
      clone "^1.0.0"
      clone-stats "^0.0.1"
      replace-ext "0.0.1"
  
  which@^1.2.12, which@^1.2.9:
    version "1.2.14"
    resolved "https://registry.yarnpkg.com/which/-/which-1.2.14.tgz#9a87c4378f03e827cecaf1acdf56c736c01c14e5"
    dependencies:
      isexe "^2.0.0"
  
  wordwrap@~1.0.0:
    version "1.0.0"
    resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
  
  wrappy@1:
    version "1.0.2"
    resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
  
  write@^0.2.1:
    version "0.2.1"
    resolved "https://registry.yarnpkg.com/write/-/write-0.2.1.tgz#5fc03828e264cea3fe91455476f7a3c566cb0757"
    dependencies:
      mkdirp "^0.5.1"
  
  "xtend@>=4.0.0 <4.1.0-0", xtend@~4.0.1:
    version "4.0.1"
    resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
  
  yallist@^2.1.2:
    version "2.1.2"
    resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"

Trace: 
  Error: EISDIR: illegal operation on a directory, open '/home/ubuntu/.cache/yarn/v1/npm-wrappy-0.0.0-5ae29abe-8e63-45d0-9716-b1d2da57b78a-1501482598134'
      at Error (native)

###試したこと
ドキュメントの解読は試みましたが、十分に理解ができませんでしたm(_ _)m

###補足情報(言語/FW/ツール等のバージョンなど)
Yarn version:
0.27.5

Node version:
6.11.1

Platform:
linux x64

npm version:
3.10.10

ソースコード

package.json

{
  "name": "nodetest",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "scripts": {
    "start": "gulp"
  },
  "dependencies": {
    "babel-polyfill": "^6.23.0"
  },
  "devDependencies": {
    "babel-loader": "^7.1.1",
    "babel-preset-latest": "^6.24.1",
    "del": "^3.0.0",
    "eslint": "^4.3.0",
    "eslint-config-airbnb": "^15.1.0",
    "eslint-plugin-import": "^2.7.0",
    "eslint-plugin-jsx-a11y": "^5.1.1",
    "eslint-plugin-react": "^7.1.0",
    "gulp": "^3.9.1",
    "gulp-babel": "^6.1.2",
    "gulp-eslint": "^4.0.0"
  },
  "babel": {
    "presets": [
      "latest"
    ]
  },
  "eslintConfig": {
    "extends": "airbnb",
    "plugins": [
      "import"
    ],
    "env": {
      "browser": true
    }
  }
}

何かご存じの方いらいっしゃいましたら是非ご教示いただきたいですm(_ _)m

Answer 1

自己解決しました。

ディレクトリに存在した不要なファイル"1"を削除したことでなぜか解決しました。

参考にしたのは下記の記事です。
https://github.com/yarnpkg/yarn/issues/680

不要なreadmeディレクトリがあると再現するエラーだ、との文言を確認し、不要なファイルがあるのかとルートディレクトリにて ls したところ、意味のわからない "1" というファイルがあったので削除しました。

そこで再度、yarn add したところ、問題なく通りました。

いまいち腑に落ちないですが、なんとかなりました。。。

Answer 2

再現できないので、package.jsonの中身を教えていただけますか？

Comments

[ksyunnnn]

コメントありがとうございますm(_ _)m
下記になります。質問内容にも追記させていただきます。

{
"name": "nodetest",
"version": "1.0.0",
"main": "index.js",
"license": "MIT",
"scripts": {
"start": "gulp"
},
"dependencies": {
"babel-polyfill": "^6.23.0"
},
"devDependencies": {
"babel-loader": "^7.1.1",
"babel-preset-latest": "^6.24.1",
"del": "^3.0.0",
"eslint": "^4.3.0",
"eslint-config-airbnb": "^15.1.0",
"eslint-plugin-import": "^2.7.0",
"eslint-plugin-jsx-a11y": "^5.1.1",
"eslint-plugin-react": "^7.1.0",
"gulp": "^3.9.1",
"gulp-babel": "^6.1.2",
"gulp-eslint": "^4.0.0"
},
"babel": {
"presets": [
"latest"
]
},
"eslintConfig": {
"extends": "airbnb",
"plugins": [
"import"
],
"env": {
"browser": true
}
}
}